Advanced Water Purification

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The Advanced Water Purification Demonstration Project is now open to the public and will be operating for demonstration and testing purposed until summer of 2016. At that time, the Demonstration Project is producing approximately 100,000 gallons of water per day for demonstration and testing purposes. Residents who would like to view the advanced water purification process first-hand can schedule a tour by clicking on the 'Take a Tour' button above.
AWP Demo Facility
A New Source of Water
During the Demonstration Project, the purified water will be tested daily to ensure it meets the public health objectives for California Public Health Department approval. The ultimate goal is to develop a proven full-scale project that utilizes water produced within the District to serve Padre Dam Municipal Water District’s customers. 

f the demonstration project is a success and the project moves forward, it would provide up to 2,000 to 3,000 acre feet per year of drinking water to Padre Dam customers. This is approximately 20-25 percent of Padre Dam’s current drinking water demands. 
The Advanced Water Purification Demonstration Project is funded through a three million dollar Proposition 50 grant from the Department of Water Resources, will use advanced water purification technologies to potentially diversify East County’s water supply by providing a new source of water that is safe, reliable, locally controlled and drought-proof.

Rigorous Purification Process

The purification process begins with treating recycled water using state-of-the-art technologies. This treatment process includes four advanced water treatment steps - free chlorine disinfection, membrane filtration, reverse osmosis and ultra violet/advanced oxidation. After treatment, it would be injected into the groundwater basin where it is naturally filtered and would then be withdrawn and treated again prior to distribution as drinking water.


   4 step AWT process



A Regional Water Solution  

An additional study is being conducted to consider the potential for expanding the Santee Advanced Water Purification Program to include more East County communities. This proposed expanded project would include the service areas of Padre Dam Municipal Water District, Helix Water District, a portion of the County of San Diego, and the City of El Cajon. This study will evaluate expanding Padre Dam’s Advanced Water Treatment facility, and advanced treatment systems, in order to provide a new water supply for additional local users beyond Padre Dam’s water customers.